CVE-2024-0558 Overview
CVE-2024-0558 is a SQL injection vulnerability in DedeBIZ 6.3.0, a Chinese-language content management and e-commerce platform. The flaw resides in /admin/makehtml_freelist_action.php, where the startid parameter is passed to a database query without proper sanitization. Authenticated attackers can inject arbitrary SQL statements over the network to read, modify, or destroy backend data. The issue is tracked as VulDB entry 250726 and maps to CWE-89: Improper Neutralization of Special Elements used in an SQL Command. The vendor did not respond to disclosure attempts, and a public proof-of-concept has been released.
Critical Impact
Authenticated attackers with administrative access can exploit the startid parameter to execute arbitrary SQL queries against the DedeBIZ backend, compromising confidentiality, integrity, and availability of the database.
Affected Products
- DedeBIZ 6.3.0
- Administrative interface component makehtml_freelist_action.php
- Deployments exposing the /admin/ path to untrusted networks
Discovery Timeline
- 2024-01-15 - CVE-2024-0558 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-0558
Vulnerability Analysis
The vulnerability is a classic SQL injection reachable through the DedeBIZ administrative panel. The endpoint /admin/makehtml_freelist_action.php accepts a startid request parameter that is concatenated directly into a SQL statement without parameterization or input validation. An attacker who can reach the admin interface and holds valid administrator credentials can manipulate startid to alter the query structure.
Successful exploitation allows the attacker to enumerate database schemas, exfiltrate sensitive records such as administrator password hashes, modify content, or drop tables. Because DedeBIZ stores site configuration and user data in the same database, injection here effectively grants full backend control. A public proof-of-concept exists on GitHub, lowering the technical bar for exploitation.
Root Cause
The root cause is the failure to neutralize special SQL characters supplied through the startid request parameter before including it in a dynamic query. The application relies on string concatenation rather than prepared statements, allowing attacker-controlled input to escape the intended query context.
Attack Vector
Exploitation requires network access to the DedeBIZ administrative interface and valid high-privilege credentials, since the vulnerable script sits behind admin authentication. Once authenticated, the attacker submits a crafted HTTP request with a malicious startid payload. No user interaction is required beyond the attacker's own session.
The attack is remote and can be automated. See the public proof-of-concept for request structure details. Refer to the VulDB entry 250726 for additional technical context.
Detection Methods for CVE-2024-0558
Indicators of Compromise
- HTTP requests to /admin/makehtml_freelist_action.php containing SQL metacharacters such as single quotes, UNION, SELECT, SLEEP(, or comment sequences in the startid parameter.
- Unexpected database errors, unusually long query execution times, or anomalous response sizes tied to the makehtml_freelist_action.php endpoint.
- New or modified administrator accounts and unexplained changes to core CMS tables following access to the admin panel.
Detection Strategies
- Deploy web application firewall (WAF) rules that flag SQL keywords and tautologies in the startid parameter of the vulnerable endpoint.
- Enable database query logging and alert on syntactically malformed queries or queries referencing information_schema originating from the DedeBIZ application user.
- Correlate administrator login events with subsequent requests to makehtml_freelist_action.php to identify session abuse.
Monitoring Recommendations
- Forward web server access logs and database audit logs to a centralized SIEM for behavioral analysis and long-term retention.
- Alert on repeated 500-series responses from /admin/ endpoints, which frequently indicate SQL injection probing.
- Baseline normal administrator activity patterns to surface off-hours or geo-anomalous access preceding injection attempts.
How to Mitigate CVE-2024-0558
Immediate Actions Required
- Restrict access to the /admin/ directory using IP allowlisting, VPN gating, or reverse-proxy authentication until a patched build is available.
- Rotate all DedeBIZ administrator credentials and enforce strong, unique passwords with multi-factor authentication at the perimeter.
- Review database audit logs for evidence of prior exploitation, focusing on unusual queries from the DedeBIZ database user.
Patch Information
At the time of NVD publication, the DedeBIZ vendor had not responded to the disclosure and no official patch was referenced in the advisory. Administrators should monitor the official DedeBIZ project channels for updates and apply any subsequent security releases immediately.
Workarounds
- Place the DedeBIZ administrative interface behind a WAF configured to block SQL injection patterns in query and body parameters.
- Apply a virtual patch that strictly validates startid as a positive integer before the request reaches PHP.
- If feasible, apply a custom source-code fix that replaces string concatenation in makehtml_freelist_action.php with a parameterized query using the platform's database abstraction layer.
- Consider migrating to a supported, actively maintained CMS if the vendor continues to be unresponsive to security disclosures.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
